专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20220206517A1 LOAD-SENSING MULTI-WAY VALVE WORK SECTION 有权
公开(公告)号：US20220206517A1
公开(公告)日：2022-06-30
申请号：US17559193
申请日：2021-12-22
申请人： Danfoss Power Solutions (Zhejiang) Co. Ltd.
发明人： Zhongxiao Ma , Likui Zhai , Shenzhi He
IPC分类号： G05D16/10 , G05D16/04
摘要： Disclosed is a load-sensing multi-way valve work section comprising a valve body, which comprises a compensation valve and a reversing valve both formed therein, wherein the compensation valve is provided with a compensation valve bore formed in the valve body and a compensation valve spool accommodated in the compensation valve bore, with a compensation valve oil inlet chamber, a compensation valve oil outlet chamber, a spring-side control chamber and a springless-side control chamber all being formed inside the compensation valve bore; wherein the reversing valve is provided with a reversing valve bore formed in the valve body and a reversing valve spool accommodated in the reversing valve bore, the reversing valve spool being configured to control communications among a main oil inlet chamber, a first working oil chamber, a second working oil chamber, a first oil return chamber, a second oil return chamber, a first load-sensing feedback pressure sensing opening and a second load-sensing feedback pressure sensing opening formed in the reversing valve bore, the compensation valve oil outlet chamber being communicated to the main oil inlet chamber; and wherein the load-sensing multi-way valve work section also defines a feedback passage formed within the valve body, the feedback passage being configured to communicate one of the first and second load-sensing feedback pressure sensing openings with the spring-side control chamber depending on a position of the reversing valve spool in the reversing valve bore.

2. 发明授权

US10767667B2 Electronically controlled valve, hydraulic pump, and hydraulic pump system 有权
公开(公告)号：US10767667B2
公开(公告)日：2020-09-08
申请号：US15812516
申请日：2017-11-14
申请人： Danfoss Power Solutions (Zhejiang) Co. Ltd.
发明人： Zhimin Guo , Stanislav Smolka , Carsten Fiebing
IPC分类号： F15B11/042 , F15B11/17 , F04B49/00 , F04B49/06 , F04B1/32 , F04B1/26
摘要： The present invention relates to an electronically controlled valve for a variable displacement pump, a hydraulic pump and a hydraulic pump system with switchable control functions. Multiple control functions of different types of hydraulic pumps can be implemented via one single electronically controlled valve combined with control elements and sensors. The hydraulic pump systems can be easily integrated into the overall application systems for intelligent control.

3. 发明申请

US20190316693A1 VALVE AND HYDRAULIC SYSTEM WITH THE SAME 审中-公开
公开(公告)号：US20190316693A1
公开(公告)日：2019-10-17
申请号：US16374863
申请日：2019-04-04
申请人： Danfoss Power Solutions (Zhejiang) Co. Ltd
发明人： Zhongxiao Ma , Likui Zhai
IPC分类号： F16K11/22 , F15B13/02
摘要： Embodiments of the present invention disclose a valve. The valve includes: a valve casing, a main valve spool and a counterbalance valve spool. The counterbalance valve spool is disposed in a main valve spool internal cavity of the main valve spool and is slidable between a first counterbalance valve spool position and a second counterbalance valve spool position. The counterbalance valve spool includes: a counterbalance valve spool body; and a first counterbalance valve spool recess formed on an outer periphery of the counterbalance valve spool body. In a state where the counterbalance valve spool is in the first counterbalance valve spool position, an inlet of an outlet passage of the main valve spool is closed by the counterbalance valve spool; and in a state where the counterbalance valve spool is in the second counterbalance valve spool position, the inlet of the outlet passage of the main valve spool is opened by the counterbalance valve spool through the first counterbalance valve spool recess of the counterbalance valve spool, so that a second working port is in communication with a return port through an inlet passage configured for the second working port, the first counterbalance valve spool recess and the outlet passage.

4. 发明申请

US20180135660A1 ELECTRONICALLY CONTROLLED VALVE, HYDRAULIC PUMP, AND HYDRAULIC PUMP SYSTEM 审中-公开
公开(公告)号：US20180135660A1
公开(公告)日：2018-05-17
申请号：US15812516
申请日：2017-11-14
申请人： Danfoss Power Solutions (Zhejiang) Co. Ltd.
发明人： Zhimin Guo , Stanislav Smolka , Carsten Fiebing
IPC分类号： F15B11/17
摘要： The present invention relates to an electronically controlled valve for a variable displacement pump, a hydraulic pump and a hydraulic pump system with switchable control functions. Multiple control functions of different types of hydraulic pumps can be implemented via one single electronically controlled valve combined with control elements and sensors. The hydraulic pump systems can be easily integrated into the overall application systems for intelligent control.

5. 外观设计

USD970559S1 Hydraulic pump 有权
公开(公告)号：USD970559S1
公开(公告)日：2022-11-22
申请号：US29820249
申请日：2021-12-21
申请人： Danfoss Power Solutions (Zhejiang) Co. Ltd.
设计人： Zhimin Guo , Xiaogang Wang , Gang Chen , Shujun Shen , Hui Jin

6. 发明申请

US20180335056A9 ELECTRONICALLY CONTROLLED VALVE, HYDRAULIC PUMP, AND HYDRAULIC PUMP SYSTEM 审中-公开
公开(公告)号：US20180335056A9
公开(公告)日：2018-11-22
申请号：US15812516
申请日：2017-11-14
申请人： Danfoss Power Solutions (Zhejiang) Co. Ltd.
发明人： Zhimin Guo , Stanislav Smolka , Carsten Fiebing
IPC分类号： F15B11/17
CPC分类号： F15B11/17 , F04B1/26 , F04B1/32 , F04B49/002 , F04B49/06 , F15B11/0423 , F15B2211/20538 , F15B2211/20553 , F15B2211/20576 , F15B2211/63 , F15B2211/6309 , F15B2211/6313 , F15B2211/633 , F15B2211/6333 , F15B2211/6652 , F15B2211/6655
摘要： The present invention relates to an electronically controlled valve for a variable displacement pump, a hydraulic pump and a hydraulic pump system with switchable control functions. Multiple control functions of different types of hydraulic pumps can be implemented via one single electronically controlled valve combined with control elements and sensors. The hydraulic pump systems can be easily integrated into the overall application systems for intelligent control.

7. 外观设计

USD964426S1 Hydraulic pump 有权
公开(公告)号：USD964426S1
公开(公告)日：2022-09-20
申请号：US29687951
申请日：2019-04-17
申请人： Danfoss Power Solutions (Zhejiang) Co. Ltd.
设计人： Zhimin Guo , Xiaogang Wang , Gang Chen , Shujun Shen , Hui Jin

8. 发明公开

EP3553324A1 VALVE AND HYDRAULIC SYSTEM WITH THE SAME 审中-公开
公开(公告)号：EP3553324A1
公开(公告)日：2019-10-16
申请号：EP19166519.9
申请日：2019-04-01
申请人： Danfoss Power Solutions (Zhejiang) Co. Ltd
发明人： Ma, Zhongxiao , Zhai, Likui
IPC分类号： F15B13/02 , F15B13/04
摘要： Embodiments of the present invention disclose a valve. The valve includes: a valve casing, a main valve spool and a counterbalance valve spool. The counterbalance valve spool is disposed in a main valve spool internal cavity of the main valve spool and is slidable between a first counterbalance valve spool position and a second counterbalance valve spool position. The counterbalance valve spool includes: a counterbalance valve spool body; and a first counterbalance valve spool recess formed on an outer periphery of the counterbalance valve spool body. In a state where the counterbalance valve spool is in the first counterbalance valve spool position, an inlet of an outlet passage of the main valve spool is closed by the counterbalance valve spool; and in a state where the counterbalance valve spool is in the second counterbalance valve spool position, the inlet of the outlet passage of the main valve spool is opened by the counterbalance valve spool through the first counterbalance valve spool recess of the counterbalance valve spool, so that a second working port is in communication with a return port through an inlet passage configured for the second working port, the first counterbalance valve spool recess and the outlet passage.

9. 发明公开

EP4019786A1 LOAD-SENSING MULTI-WAY VALVE WORK SECTION 审中-公开
公开(公告)号：EP4019786A1
公开(公告)日：2022-06-29
申请号：EP21213299.7
申请日：2021-12-09
申请人： Danfoss Power Solutions (Zhejiang) Co. Ltd
发明人： Ma, Zhongxiao , He, Shenzhi , Zhai, Likui
IPC分类号： F15B13/04 , F16K11/07 , F15B13/08 , F15B13/02
摘要： Disclosed is a load-sensing multi-way valve work section comprising a valve body, which comprises a compensation valve and a reversing valve both formed therein, wherein the compensation valve is provided with a compensation valve bore formed in the valve body and a compensation valve spool accommodated in the compensation valve bore, with a compensation valve oil inlet chamber, a compensation valve oil outlet chamber, a spring-side control chamber and a springless-side control chamber all being formed inside the compensation valve bore; wherein the reversing valve is provided with a reversing valve bore formed in the valve body and a reversing valve spool accommodated in the reversing valve bore, the reversing valve spool being configured to control communications among a main oil inlet chamber, a first working oil chamber, a second working oil chamber, a first oil return chamber, a second oil return chamber, a first load-sensing feedback pressure sensing opening and a second load-sensing feedback pressure sensing opening formed in the reversing valve bore, the compensation valve oil outlet chamber being communicated to the main oil inlet chamber; and wherein the load-sensing multi-way valve work section also defines a feedback passage formed within the valve body, the feedback passage being configured to communicate one of the first and second load-sensing feedback pressure sensing openings with the spring-side control chamber depending on a position of the reversing valve spool in the reversing valve bore.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式